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1. 发明申请

WO2010046090A1 VARIABLE FLOW RATE VALVE SYSTEM 审中-公开
标题翻译：可变流量阀系统
公开(公告)号：WO2010046090A1
公开(公告)日：2010-04-29
申请号：PCT/EP2009/007513
申请日：2009-10-20
申请人： BÜRKERT WERKE GMBH , KIRST, Thomas , MÜLLER, Stefan , GROSSE, Kersten , HÜFNER, Egon
发明人： KIRST, Thomas , MÜLLER, Stefan , GROSSE, Kersten , HÜFNER, Egon
IPC分类号： F16K3/26
CPC分类号： F16K3/26 , Y10T137/7758
摘要： A variable flow rate valve system is disclosed in which the flow rate is adjusted using the flow medium itself by creating differential pressures that determine the position of a valve member in relation to its valve seat. The valve system includes a valve chamber with an inlet (6) and an outlet (7). A diaphragm (9) divides the valve chamber into a control chamber (20) and a flow chamber (22) connected with the inlet (6). A valve seat (8a) is arranged in the flow chamber (22) on the side of the outlet (7). A valve body (8) is connected with the diaphragm (9) and cooperates with the valve seat (8a) to modulate a flow from the inlet to the outlet and through the flow chamber. A first pilot valve (24) is located in a first bypass (28) that extends between the outlet (7) and the control chamber (20), and a second pilot valve (26) is located in a second bypass (27) that extends between the inlet (6) and the control chamber (20). The first and second pilot valves are controlled to selectively open or close the first and second bypasses thereby varying the flow through the flow chamber between a fully open and a fully closed condition continuously or in discrete steps in response to a control signal. The valve member is actuated solely by the medium itself, e.g. water, by creating appropriate differential pressures on both sides of the diaphragm (9).
摘要翻译：公开了一种可变流量阀系统，其中使用流动介质本身通过产生确定阀构件相对于其阀座的位置的压差来调节流量。阀系统包括具有入口（6）和出口（7）的阀室。隔膜（9）将阀室分成与入口（6）连接的控制室（20）和流动室（22）。阀座（8a）布置在流动室（22）的出口（7）侧。阀体（8）与隔膜（9）连接并与阀座（8a）配合以调节从入口到出口和流动室的流动。第一先导阀（24）位于在出口（7）和控制室（20）之间延伸的第一旁路（28）中，并且第二先导阀（26）位于第二旁路（27）中，第二旁通在入口（6）和控制室（20）之间延伸。控制第一和第二先导阀以选择性地打开或关闭第一和第二旁路，从而响应于控制信号连续地或以离散步骤改变在完全打开和完全关闭状态之间通过流动室的流动。阀构件仅由介质本身致动，例如，水，通过在隔膜（9）的两侧产生适当的压差。

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